[DocsUI] Use clickAndRetryOnLongPress when cant have long press

Using ViewActions.click() to click on something in tests is problematic
when the click has to be the intended (short) click and not a long
press. This is because ViewActions.click() can become a long press
accidentally.

ViewActions.click() will retry the click in the case of a long press,
only if a rollbackAction is provided. Manage this logic behind a helper
clickAndRetryOnLongPress().

A lot of times ViewActions.click() is sufficient because the click and
long press behaviour are the same. But in the cases they are not, use
clickAndRetryOnLongPress() which retries the click whenever a long press
accidentally occurred. The caller can also provide a rollbackAction to
be run in between retries for when the long press has an effect. In the
case that the long press does nothing and the click just needs to be
retried, the default rollbackAction will be a DoNothingAction.

Bug: 433362841
Flag: EXEMPT test fix
Test: atest com.android.documentsui.RenameDocumentUiTest#testRename_NameExists
Test: atest com.android.documentsui.FileManagementUiTest#testDeleteDocument
Change-Id: Ibfa428c592a1068859fdf66bc1480b1487f7fb2d